java外观模式

Uml图：

//子系统：//CheckWord.javapublic class CheckWord {      public final int basicAmout =85;      String advertisement;      int amout;      public CheckWord(String advertisement) {            this.advertisement=advertisement;      }      public void  setChargeAmout() {            amout =advertisement.length()+basicAmout;//计算出计费字符数目      }    public int getAmout(){      return amout;    }}//Charge.javapublic class Charge {    public final int basicCharge =12;    CheckWord checkWord;      public Charge(CheckWord checkWord) {            this.checkWord=checkWord;      }      public void giveCharge() {            int charge=checkWord.getAmout()*basicCharge;            System.out.println("费用为"+charge+"元");      }}//TypeSeting.javapublic class TypeSeting {    String advertisement;      public TypeSeting(String advertisement) {            this.advertisement=advertisement;      }      public void typeSetting() {            System.out.println("排版");            System.out.println("**********");            System.out.println(advertisement);            System.out.println("**********");      }}//外观：public class ClientServerFacade {   private CheckWord checkWord;   private Charge charge;   private TypeSeting typeSeting;   String advertisement;      public ClientServerFacade(String advertisement) {            this.advertisement =advertisement;            checkWord=new CheckWord(advertisement);            charge =new Charge(checkWord);            typeSeting=new TypeSeting(advertisement);      }      public void Advertisement() {            checkWord.setChargeAmout();            charge.giveCharge();            typeSeting.typeSetting();      }}//模式使用：public class Application {      public static void main(String[] args) {            ClientServerFacade clientServerFacade;            String clentAdvertisementString = "sony 笔记本，售价5000";            clientServerFacade = new ClientServerFacade(clentAdvertisementString);            clientServerFacade.Advertisement();      }}